{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-22734 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-22734 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-22734 is a high-severity vulnerability in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior, published on 26 May 2021. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-22734 and fix it if it is affected.\n\nWhat it is: CVE-2021-22734 is a high-severity vulnerability in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior, published on 26 May 2021. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-22734 in the wild and no public exploit code.\n\nAffected product: homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-22734/ (Markdown: https://insights.sbomify.com/CVE-2021-22734/index.md)","id":"CVE-2021-22734","markdown":"https://insights.sbomify.com/CVE-2021-22734/index.md","name":"CVE-2021-22734","record":{"aliases":["GHSA-hxjr-hwrw-hrv5"],"analysis":{"component_type":"iot_embedded","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"KNX home automation gateway","requires_auth":"high_privilege","summary":"Attackers can execute arbitrary code on Schneider homeLYnk and spaceLYnk devices by bypassing cryptographic signature verification.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"schneider","cpe":[{"product":"homelynk_firmware","vendor":"schneider-electric"},{"product":"spacelynk_firmware","vendor":"schneider-electric"}],"cvss":{"score":7.2,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"Improper Verification of Cryptographic Signature vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior which could cause remote code execution when an attacker loads unauthorized code.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Security feature bypass in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior","id":"CVE-2021-22734","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Security feature bypass in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior","id":"CVE-2021-22735"},"packages":[],"prev":{"headline":"Privilege escalation in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior","id":"CVE-2021-22733"},"products":["homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior"],"published":"2021-05-26","related":[{"cvss_score":9.8,"headline":"Hardcoded credentials in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior","id":"CVE-2021-22737","kev_date_added":null,"published":"2021-05-26"},{"cvss_score":9.8,"headline":"Weak cryptography in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior","id":"CVE-2021-22738","kev_date_added":null,"published":"2021-05-26"},{"cvss_score":7.8,"headline":"Privilege escalation in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior","id":"CVE-2021-22732","kev_date_added":null,"published":"2021-05-26"},{"cvss_score":7.8,"headline":"Privilege escalation in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior","id":"CVE-2021-22733","kev_date_added":null,"published":"2021-05-26"},{"cvss_score":7.5,"headline":"Path traversal in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior","id":"CVE-2021-22736","kev_date_added":null,"published":"2021-05-26"},{"cvss_score":7.5,"headline":"Auth bypass in Wiser for KNX","id":"CVE-2018-7779","kev_date_added":null,"published":"2018-07-03"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can execute arbitrary code on Schneider homeLYnk and spaceLYnk devices by bypassing cryptographic signature verification.","url":"https://insights.sbomify.com/CVE-2021-22734/"}